Stanco Virus

 Virus Name:  Stanco 
 V Status:    Rare 
 Discovered:  August, 1992 
 Symptoms:    .EXE file growth; unusual error messages 
 Origin:      Eastern Europe 
 Eff Length:  7,529 Bytes 
 Type Code:   PNCK - Parasitic Non-Resident .EXE Infector 
 Detection Method:  F-Prot, AVTK, Sweep, IBMAV, ViruScan, VAlert, NAV, 
                    NAVDX, ChAV, 
                    Sweep/N, AVTK/N, Innoc, IBMAV/N, NShld, NAV/N 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Stanco virus was submitted in August, 1992.  It is originally 
       from Eastern Europe.  Stanco is a non-resident, direct action 
       infector of .EXE programs. 
       When a program infected with the Stanco virus is executed, this 
       virus will infect one .EXE program located in the current directory. 
       Infected programs will have a file length increase of 7,529 bytes 
       with the virus being located at the beginning of the infected 
       program.  The file's date and time in the DOS disk directory 
       listing will not be altered.  The following text strings are 
       contained in the viral code, but are not visible in infected 
       programs as the virus replicates in a PKLited form: 
               "Insufficient DOS Version ... must be 3.2x or greater!" 
               "Write Protect Error \ Disk Full ..." 
               "Error in file .EXE" 
       Systems infected with the Stanco virus may receive unusual error 
       messages when the user attempts to execute infected programs, 
       such as the Write Protect Error message indicated above. 

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